As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: DURING THE ACCOMPLISHMENTS OF CPCP 53-210-00 TASK, LEFT HAND RAM AIR MODULE ON FUSELAGE SKIN BETWEEN BS 500G TO 500H AND STR 22L TO STR 24L HAS CORROSION. REMOVED CORROSION. PER B737 SRM 51-10-02 AND PER B737 SRM 53-00-01-1A PROCEDURE 1.